Hi,I am using Jboss 4.2.3.GA with JDK 1.5.After starting the server, day after server is not responding (dead)..it means if we check the status of the server it shows RUNNING,but we can't open the consoleusing the address http://ipoftheserver:8080/

when I attached the visualgc to the server.visualgc status shows dead.

server is started in unix environment.If we open the browser it shows opening the page,but it never opens.

how to investigate this issue?what will be the root cause for this problem?

Hi Peter,Second thing which you had mentioned is didn't work for me.Following are the updates.

1.Signal the JVM to print out a StackTraceJbossServer is started in UNIX environment.When I try to run the command kill -3 processid in the UNIX. Process is not killed.After running this command, if I check the status of the Jboss server it says server is running.

2.Generate a thread dump using the jmx-consoleI can't open the jbossConsole using the following urlhttp://localhost:8080. Page never opens but it says opening the page.I believe without opening the jbossconsole we can't open the JMX console.It's not listining for http://localhost:8080.

1) kill -3 does not kill the process - it sends a quit signal to the JVM which then sends the threadump to stdout. You need to ensure that the initialization script used to run jbossas redirects stdout to a file.

2, 3) Based on your earlier statements, I would not expect these to work because they require jbossas to repsond.

Hi Peter,I got some tool to analyze the thread dump.After analysis what I found is,In jboss server connection pool is configured to allow 75 connections.After sometime starting the server,all database connections being blocked,it shows all 75 connections are inactive.Java code base also, we are closing the connections after performing the operations.Because of all the database connections are blocked, server couldn't connect to database.Hence it's going to zombie state.

Is there any configuration changes required in jboss to overcome this issue?

When it happened,1. Network was fine, I could able to ping the server ip address2. In server log no error messages3. We are using unix script to start,stop and check the status of the server. status of the server was showing 'Running'4. when we open the the browser with http://ip:8080/ statusbar shows connecting....After some time approximately 10 or 15 mins it says page not found